> As noticed by Aliano and Ellis in one of the cited papers: "The mode of
> action for OA is not completely understood."
>
> And now, some 11 years after that statement, as far as I've seen, the mode
> of action is not in any way understood, and any claims as to its mode of
> action appear to be merely speculative.
>
> This may be extremely naive on my part, but how is it that we don't know
whether an OA treatment burns a varroa's mouth parts yet (or cuticles, as
I've heard mentioned before)?

It seems like it should be a fairly easy test: do an OAV treatment, pick up
some mites from the drop, look at them under a microscope to see if there's
burning.

If I had a microscope capable of seeing that, I would myself.

Or am I missing something significantly deeper?

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